1. Vlasuk, M. P. 1972 Heat transfer with natural convection in permeable porous medium.IVth All-Union Heat and Mass Transfer Conference (Minsk), paper no. 1–49.
2. Nield, D. A. 1968 Onset of thermohaline convection in a porous medium.Wat. Resour. Res. 4,353–360.
3. Unny, T. E. 1972 Thermal instability in differential heated inclined fluid layers.J. Appl. Mech. 39,41–46.
4. Westbrook, D. It. 1969 Stability of convective flow in a porous medium.P h p. Fluids,12,1547.
5. Bories, S. A. 1970b Sur les mécanismes fondamentaux de la convection naturelle en milieu poreux.Revue Gén. Therm. 9 (108),1377–1402.